Yokogawa SC72 Personal Handheld Conductivity Meter - Manual (Page 23)

IM 12D03D02-01E 3-2
3. Measurement
3.2 Measurement Procedures
Dipping sensor into liquid
To help avoid errors due to air bubbles around the sensor element (inner electrode),
immerse the sensor into the liquid to be measured so that its air vent is below liquid
level. To dislodge any air bubbles from the inner electrode, dip the sensor into the liquid
and move it up and down two or three times.
Air vent
Measuring liquid level
Cover
If air bubbles are on this section,
measurement error may occur.
Electrode
element
F0302.EPS
Figure 3.2 Dipping Sensor in Liquid (for general-purpose sensors)